/*********************************************************************
 * Copyright (C) 2002 Andrew Khan
 * <p>
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * <p>
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * <p>
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 ***************************************************************************/

package jxl.write.biff;

import jxl.biff.Type;
import jxl.biff.WritableRecordData;

/**
 * Record to indicate the beginning of a new stream in the Compound
 * File
 */
class BOFRecord extends WritableRecordData {
    /**
     * The data to write to the file
     */
    private byte[] data;

    // Dummy types for constructor overloading
    private static class WorkbookGlobalsBOF {
    }

    ;

    private static class SheetBOF {
    }

    ;

    public final static WorkbookGlobalsBOF workbookGlobals
            = new WorkbookGlobalsBOF();
    public final static SheetBOF sheet = new SheetBOF();

    /**
     * Constructor for generating a workbook globals BOF record
     *
     * @param dummy - a dummy argument for overloading purposes
     */
    public BOFRecord(WorkbookGlobalsBOF dummy) {
        super(Type.BOF);

        // Create the data as biff 8 format with a substream type of
        // workbook globals
        data = new byte[]
                {(byte) 0x0,
                        (byte) 0x6,
                        (byte) 0x5, // substream type
                        (byte) 0x0, // substream type
                        (byte) 0xf2, // rupBuild
                        (byte) 0x15, // rupBuild
                        (byte) 0xcc, // rupYear
                        (byte) 0x07, // rupYear
                        (byte) 0x0, // bfh
                        (byte) 0x0, // bfh
                        (byte) 0x0, // bfh
                        (byte) 0x0, // bfh
                        (byte) 0x6, // sfo
                        (byte) 0x0, // sfo,
                        (byte) 0x0, // sfo
                        (byte) 0x0  // sfo
                };
    }

    /**
     * Constructor for generating a sheet BOF record
     *
     * @param dummy - a dummy argument for overloading purposes
     */
    public BOFRecord(SheetBOF dummy) {
        super(Type.BOF);

        // Create the data as biff 8 format with a substream type of
        // worksheet
        data = new byte[]
                {(byte) 0x0,
                        (byte) 0x6,
                        (byte) 0x10, // substream type
                        (byte) 0x0,  // substream type
                        (byte) 0xf2, // rupBuild
                        (byte) 0x15, // rupBuild
                        (byte) 0xcc, // rupYear
                        (byte) 0x07, // rupYear
                        (byte) 0x0, // bfh
                        (byte) 0x0, // bfh
                        (byte) 0x0, // bfh
                        (byte) 0x0, // bfh
                        (byte) 0x6, // sfo
                        (byte) 0x0, // sfo,
                        (byte) 0x0, // sfo
                        (byte) 0x0  // sfo
                };
    }

    /**
     * Gets the data for writing to the output file
     *
     * @return the binary data for writing
     */
    public byte[] getData() {
        return data;
    }
}

